Wash-out valve for steam-boilers



(No Model.)

J. RODNEY.

WASHOUT VALVE FOR STEAM BOILERS.

No. 586,368. Patented July 13, 1897.

UNITED STATES PATENT ()EEIcE.

JOHN RODNEY, OF DETROIT, MICHIGAN.

WASH-OUT VALVE FOR STEAM-BOILERS.

SPECIFICATION forming part of Letters PatentNo. 586,368, dated. July 13,1897.

Application filed February 5, 1897- Serial No. 622,070. (No model.)

To all whom it may concern.-

Be it known that I, JOHN ROONEY, a citizen of the United States,residing at Detroit, in the county of XVayne and State of Michigan, haveinvented certain new and useful Improvements in IVash-Out Valves forLocomotive-Boilers and for other Uses; and I declare the following to bea full, clear, and ex act description of the same, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, which form apart of this specification.

My invention has for its object a novel wash-out valve forlocomotive-boilers and for other purposes; and it consists of theconstruction, combination, and arrangement of devices hereinafterspecified and claimed, and illustrated in the accompanying drawings, inwhich Figure 1 is alongitudinal section illustrating my invention. Fig.2 is a cross-section on the line as to, Fig. 3. Fig. 3 is a longitudinalsection showing a modification in the construction of the valvecasingwith parts in elevation,the lever-arm E being shown broken in two. Thesesectional views show certain parts in elevation.

It is well known that wash-out valves or blow-out cocks onlocomotive-boilers now in common use cannot be operated while thelocomotive is in use. To use the ordinary blow-off cooks, the steam mustbe let down in the locomotive-boiler, and the operation is usuallyeifected when the locomotive is in the roundhouse. It is desirable,however, to accomplish the desired results at other times and morefrequently than is practicable with the blow-0E cocks in present use toprevent the formation of scale in the boiler, the deposit of sediment,and the foaming of the boiler.

My invention is designed more particularly to enable the engineer of thelocomotive to wash out his boiler at any time and as frequently as hemay desire in a ready and convenient and efficient manner.

I carry out my invention as follows:

A represents a valve-case forming an interior water-chamber open at oneend and arranged to be closed by a suitable valve toward the oppositeend. The valve-case, as

shown in Fig. 3, is exteriorly threaded, as indicated at I, so as to beapplied to a threaded orifice in the fire-box of a boiler. As applied toa locomotive-boiler the case is screwed into the fire-box. The case isprovided with a valve'seat, (indicated in Fig. 3 at T.)

O is an endwise-movin g valve to seat upon the seat T of the case, saidvalve provided with a stem '9, reciprocatory in guide-rings F and E,which are connected with the case, as indicated more particularly inFig. 2, the guide-rings being provided with arms 6, proj ectin g outwardand connected with the case. The stem is cut away between theguide-rings or formed with an annular recess, as indicated at cl. Theopposite end of the stem, as indicated at 'g, may be squared, as shownat I), to receive a wrench to turn the valve and grind it to its seatwhen necessary.

The end of the valve-case opposite the valve is open to the atmosphereand may be constructed to receive an elbow, the same being threaded, asindicated at the left of Fig. 1, to receive an elbow.

E is a lever-arm jointedly connected with the valve-case, as indicatedat f, its inner end, as indicated at e, projecting into the waterchamberwithin the case and into the annular recess cl on the valve-stem toengage the wall or shoulder of the valve-stem on either side of saidrecess as the lever-arm E is thrown in one direction or the other.

K is a hand-lever which may be located in the cab of the locomotive andconnected with the arm E by a connecting-bar P to operate the valve. Ris a bracket engaged upon the floor O of the cab, to which the lever Kis jointedly connected, as shown at H. I do not, however, limit myselfto the employment of the lever K and the connecting-bar P, as thelever-arm E may be actuated in any desired manner or by any desiredmeans. The valve-case may be formed with lugs L to receive the pivotpinf, uniting the lever-armE therewith. The lever-arm E has preferably agroundjoint connection with the upper edges of the lugs L, as indicated,so as to make a water-tight joint thereat, the joint being in the natureof a ball-and-socket joint, the adjacent portion of the lever-arm Ebeing of circular outline adjacent to the lugs L. It will be obviousthat by throwing the upper end of the lever E to the left from theposition shown in the drawings the inner extremity 6 will force thevalve open or off its seat, while an opposite movement of the lever-armE, bearing upon the opposite shoulder of the recess d, will seat thevalve. The pressure from the boiler will serve to hold the valve to itsseat. The valvecase in the form shown in Fig. 1 is interiorly threaded,as indicated at G, to be attached to a stationary boiler. The sameconstruction enables the device to be attached to feedwater pipes oflocomotives.

The device can be applied to any kind of a boiler, as well as tofeed-water pipes of locomotives, the valve-case being open, as indicatedat h, straight through the case. The lever-arm E engages the stemintermediate its extremities.

By forming the valve-stem with the annular recess cl, into which recessthe point e of the lever-arm projects, it will readily be seen that thevalve can be turned about upon its seat either to grind it to its seator to enable the valve to variously seat itself on the case in a readymanner, which cannot be done with devices heretofore designed forblow-0E cocks. The lever-arm E, projecting at an angle from thevalve-stem, enables its being more conveniently manipulated from the cabof a locomotive. No packing-ring is required with this device. There areno flanges or joints to get out of order. The whole device is compactand of simple construction. It may readily be employed for awhistle-valve, if desired.

My device is light and simple in construction, being composed,essentially, of but three pieces, the case, the valve with its stem, andthe actuated lever-arm E. It will be obvious that the water will flowover and about the guideways within the case, plenty of room being lefttherefor.

The construction whereby the valve may be turned on its seat is'ofspecial importance.

Should any deposit settle upon the valve-seat to hinder the closeseating of the valve, it can be turned readily to dislodge the depositand clear it out of the way.

What I claim as my invention is 1. The combination of a valve-caseforming an interior water-chamber, provided with a seat and withinterior guides, a valve to seat upon said seat, said valve providedwith a stem having an endwise movement within said guides, and a leverprojecting through the case intermediate its ends to actuate the valve,said valve-stem constructed with an ann ular recess intermediate itsends to receive the inner end of the lever-arm, said leverarm pivotal] yconnected with the valve-case, and having a water-tight joint inconnection therewith, substantially as described.

2. The combination of a valve-case open at one end and provided with avalve-seat toward the opposite end, and with interior guides, a valveprovided with a reciprocatory stem having an endwise movement withinsaid guides, and a lever-arm projecting through the case at an angle tothe valvee 7o stem, and en gageable therewith to reciprocate the valve,said valve being rotatable inde pendently of said lever-arm,substantially as described.

3. The combination of a valve-case provided with a seat toward one endthereof and being open at the opposite end, a valve provided with a stemrecessed intermediate its extremities, and a lever-arm projectingthrough the valve-case intermediate its ends, to engage in the recess ofthe valve-stem, said valve being rotatable, said stem projecting throughthe open end of said case, whereby the valve may be rotated,substantially as described.

JOHN ROONEY.

Witnesses:

FRANK J. CARNEY, JOHN J. FORBES.

